(Photo by Leo Comesky) The full road closure last weekend allowed the project team to carry out multiple works throughout the site that could not have been achieved in either a single day or night shift. Thank you for your patience.

State Highway 20B Early Improvements Update

20 November 2020

Kia ora koutou,

State Highway 20B Project Updates keep you up-to-date with project progress and upcoming physical works on State Highway 20B (SH20B).

MANUKAU MEMORIAL GARDENS ENTRY

From Wednesday 25 November (weather dependant) the entry to Manukau Memorial Gardens will be temporarily moved closer to the SH20 interchange (old entrance) for approximately 10 days.

There will be a turning bay painted on the road along with signs and Traffic Controllers to assist traffic.

This temporary change will enable the SH20B project team to complete vital utilities and road building works at the main entrance.

If these works are delayed by rain they will roll to the next fine day. We apologise for the disruption and thank you for your patience.

Weekend closure from 9pm today Friday 20 November to 5am Monday 23 November

NO THROUGH-ACCESS TO AUCKLAND AIRPORT

Waka Kotahi will close State Highway 20B (SH20B) to through-traffic between the Tom Pearce/SH20B roundabout and the SH20 interchange again this weekend to complete essential work that cannot take place safely during normal working hours. Detours will be in place as follows:

9pm, Friday 20 November to 5am, Monday 23 November

Manukau Memorial Gardens will remain open and resident/business access to Campana and Prices Roads will be available from the SH20 interchange to SH20B. Access to cyclists and people on foot will also be maintained throughout the weekend.

We apologise in advance for any inconvenience. 

BUS ROUTE 380

During the closure the 380 Airporter bus service will be detoured along alternative routes. Some delays can be expected during this time. Please plan ahead and use the journey planner for up-to-date travel times.

Project progress

Activities next week (22 - 29 November)

Please note that these works are weather dependent and may be delayed.

During the day (from 7am to 6pm)

Zone 1 (from Pukaki Creek Bridge to East of Campana Road)

• T-intersection to be completed at Campana Road
• Kerb and channel work at Pukaki Creek Bridge
• Earthworks continue on the north side of Pukaki Creek Bridge
• Drainage line installation continues from Orrs Road to Pukaki Creek Bridge
• Concrete barriers installed at the southeast corner of the Campana intersection.

Waokauri Creek Bridge

• Transition barrier works
• Installation of duct brackets 

Zone 2 (from East of Campana Road to the SH20 interchange)

• Kerb and channel to be poured on the north side of the widening section close to SH20 interchange
• Streetlights to be installed between Prices Road and Black Bridge Nurseries
• Temporary barriers to be removed between Waokauri Creek Bridge and Manukau Memorial Gardens
• Excavating swales at 457 Puhinui Road and box cuts completed just past Prices Road on the north side of the carriageway.

Utilities (throughout the site)

• Protection work will be carried out for the fuel lines across SH20B at the Campana Road intersection. These works are programmed to continue for two weeks. 
• Preparation for a localised power shutdown planned for mid-December.

At night (all zones from 9pm to 5am, Sunday to Thursday)

• Ongoing drainage works to verges and road crossings 
• Continuing asphalt pavement replacement along the existing carriageway.

There will be no through traffic from SH20 interchange to the Tom Pearce Drive roundabout. Please follow the posted detour signs on SH20B.

Safety

SH20B has introduced the following safety measures to protect all road and shared path users including two temporary signalised road crossings for people on foot and on bikes:

• All traffic must turn left both into and out of properties and side roads. Manukau Memorial Gardens is exempt from left-turn movements
• Vehicles turning into driveways and side roads on the southern side must watch for bikes and foot traffic on the temporary shared cycle and walking path
• Night time detours will likely be in place from Sunday to Thursday between 9pm and 5am.  Please follow the posted detour routes
• The speed limit for SH20B is 50kph from Manukau Memorial Gardens to Tom Pearce Drive, except at crossing points and coned paving areas where the speed will briefly drop to 30kph. Please drive safely and allow extra time for your journey.

Looking Ahead

An ongoing comprehensive programme of night works is in place to enable trenching for utility services and ducting at multiple locations across SH20B. Posted detours will be in place. We apologise for any inconvenience and thank you for your patience.

Please drive safely and allow extra time for your journey.

Contact us

Please call us at 0800 796 796 or email sh20B@nzta.govt.nz if you have any questions about the SH20B Early Improvements project.

Project overview

Waka Kotahi NZ Transport Agency and Auckland International Airport Limited are upgrading State Highway 20B for better and more reliable travel options with a new shared path and additional priority lanes between Pukaki Creek Bridge and State Highway 20.

This project will integrate with improved transport facilities within the airport precinct along SH20B and at the upgraded Puhinui Station Interchange.

The project is the first step of the Southwest Gateway programme to provide better public transport, walking and cycling facilities with safer and more efficient freight movements to, from and around Southwest Auckland.

Fulton Hogan undertakes this work on behalf of Waka Kotahi.

Key early improvements on State Highway 20B to be delivered by 2021 include:

• A safe place for people to walk and ride bikes
• Safety improvements including central median barrier protection, improved lighting and a reduced speed
• Improved pavement, drainage and stormwater treatment
• Two improved intersections at Campana Road and Manukau Memorial Gardens.

Waka Kotahi NZ Transport Agency works to create transport solutions for all New Zealanders – from helping new drivers earn their licences, to leading safety campaigns to investing in public transport, state highways and local roads.

For more information on the project, you can also visit our website at www.nzta.govt.nz/projects/southwest-gateway/20connect/